Georgia Southern and Florida Railway
The Georgia Southern and Florida Railway (reporting mark GSF), also known as the Suwanee River Route from its crossing of the Suwanee River, was founded in 1885 as the Georgia Southern and Florida Railroad and began operations between Macon, GA and Valdosta, GA in 1889, extending to Palatka, FL in 1890. The railroad went bankrupt by 1891, was reorganized as the Georgia Southern and Florida Railway in 1895, and was mostly under the control of the Southern Railway.

In 1902, the GS&F purchased a line from the Atlantic, Valdosta and Western Railway that ran from Valdosta, GA to Jacksonville, FL. The GS&F also owned the Macon and Birmingham Railway and the Hawkinsville and Florida Southern Railway, both of which were operated as separate companies; both ended up going bankrupt and being mostly abandoned. At the end of 1950, the GS&F extended 257 miles from Macon, Georgia to Jacksonville, Florida, and 134 miles from Valdosta, Georgia to Palatka, Florida. A total of 397 miles were operated, which included trackage rights. The GS&F was controlled by the Southern Railway through a majority holding of its securities.

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Georgia Southern and Florida herald.

Slideshow Photo credits: *(b) - Georgia Southern and Florida Railroad Company engine number 114. Not after 1895. Black & white photonegative. State Archives of Florida, Florida Memory. Accessed 18 Dec. 2015.<https://www.floridamemory.com/items/show/147458>.    *(c) - Georgia Southern & Florida Railway Company engine number 504 - Valdosta, Georgia. 1911. Black & white photonegative. State Archives of Florida, Florida Memory. Accessed 18 Dec. 2015.<https://www.floridamemory.com/items/show/147457>.    *(d) - Georgia & Florida Southern Railway Bridge over the Suwannee River. ca 1914. Black & white photonegative. State Archives of Florida, Florida Memory. Accessed 18 Dec. 2015.<https://www.floridamemory.com/items/show/152993>.    *(e) - Employees of Georgia Southern and Florida Railway - Greenville, Florida. Between 1925 and 1935. Black & white photonegative. State Archives of Florida, Florida Memory. Accessed 18 Dec. 2015.<https://www.floridamemory.com/items/show/133446>.    *(h) - Georgia Southern & Florida Railway Company engine number 117 - Valdosta, Georgia. 1911. Black & white photonegative. State Archives of Florida, Florida Memory. Accessed 18 Dec. 2015.<https://www.floridamemory.com/items/show/147459>. 

A Georgia Southern and Florida Slideshow.

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Georgia Southern & Florida Railroad engine number 157 at Macon, Georgia, 1916.
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Norfolk Southern
The GS&F was eventually acquired by the Norfolk Southern Railway (NS) and still operates as a subsidiary. As of November 2012, at least one operating Norfolk Southern locomotive retained GSF reporting marks.

See also:

NS

Railroads of the U.S.A.

Georgia Southern & Florida Railroad engine number 157 at Macon, Georgia, 1916.

  Georiga Southern & Florida Railroad engine number 157 - Macon, Georgia. 1916. Black & white photonegative. State Archives of Florida, Florida Memory. Accessed 18 Dec. 2015.<https://www.floridamemory.com/items/show/147460>.